Auxiliary power unit for use with computer systems



FIG. 1 is a top front and right side perspective view of an auxiliary power unit for use with computer systems showing our new design;

FIG. 2 is an elevational view thereof;

FIG. 3 is a top rear and left side perspective view thereof;

FIG. 4 is a rear elevational view thereof; and,

FIG. 5 is a left side elevational view thereof.

FIGS. 2, 4 and 5 are drawn on an enlarged scale. 

The ornamental design for an auxiliary power unit for use with computer systems, as shown and described. 